Question

a_ produces ac, and a _ produces dc.
○ alternator, generator
○ generator, alternator
○ diode, alternator
○ generator, diode
question 20 1 pts
welding cables made of aluminum wire must be_ would be required for copper.
○ one size smaller than
○ the same size as
○ one size larger than
○ two sizes larger than

Explanation:

For the first question: An alternator is a device that produces alternating current (AC), while a traditional generator (DC generator) produces direct current (DC).
For Question 20: Aluminum has lower electrical conductivity than copper. To carry the same amount of current without excessive voltage drop, aluminum welding cables need a larger cross-sectional area, meaning they must be one size larger than copper cables for the same application.

Answer:

First question: alternator, generator
Question 20: one size larger than